Finding the Third Proportional to 69,117.50 and 150,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,117.50 : 150,740.50 = 150,740.50 : x
2. Step 2: Convert to fraction form
   69,117.50/150,740.50 = 150,740.50/x
3. Step 3: Cross multiply
   69,117.50x = 150,740.50 × 150,740.50
4. Step 4: Simplify right side
   69,117.50x = 22,722,698,340.25
5. Step 5: Solve for x
   x = 22,722,698,340.25/69,117.50
6. Step 6: Final answer
   x = 328,754.63